Marek Zgliczynski – EMBRACO EUROPE - EFFICIENZA ENERGETICA SU PICCOLI SISTEMI DI REFRIGERAZIONE...
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Transcript of Marek Zgliczynski – EMBRACO EUROPE - EFFICIENZA ENERGETICA SU PICCOLI SISTEMI DI REFRIGERAZIONE...
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ENERGY EFFICIENCY
IMPROVEMENT IN LIGHT
COMMERCIAL REFRIGERATION
SYSTEMS
CASE STUDIESMarek Zgliczynski
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INTRODUCTION
As a consequence of Global Warming concerns, the European Community has already decided to take
actions to phase out high GWP refrigerants, due to their contribution to green-house effect. F – Gases Regulation to be voted on June 19,
2013
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F – Gases Regulation to be voted on June 19, 2013
F – GASES EUROPEAN DIRECTIVE
Annex III – Table 1Placing on the market prohibitions referred to in Article 9 (1)
Products and equipmentDate of prohibition
(Commission proposal)
3 Use of fire protection systems and fire extinguishers that contains HFC23 1 January 2015
10 Domestic refrigerators and freezers that contain HFC with GWP higher than 150 or more
1 January 2015
11 part 1
Refrigerators and freezers for storage, display or distribution of products in retail and food service ("commercial use") - hermetically sealed systems that
contains HFC with GWP o 2500 or more1 January 2017
11 part 2
Refrigerators and freezers for storage, display or distribution of products in retail and food service ("commercial use") - hermetically sealed systems that
contains HFC with GWP of 150 or more1 January 2020
12 Movable room air-conditioning appliances (hermetically sealed equipment which is movable between rooms by the end user) contains HFC with GWP of 150 or more
1 January 2020
R134a
R404AR507
R134a, R407F, R407C, R410A, etc
Domestic refrigerators and freezers that contain HFC
Date of prohibition
(Amendment)
Refrigerators and freezers for storage , display or distribution of products in retail and food service ("commercial use")-
hermetically sealed systems that contains HFCs with GWP of 2150 or more
1 January 2015
Refrigerators and freezers for storage , display or distribution of products in retail and food service ("commercial use")-
hermetically sealed systems that contains HFCs
1 January 2018
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EMBRACO EUROPE SALES PER REFRIGERANT
1991 1996 2000 2004 2009 20120%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Light Commercial Compressors Sales by Refrigerant
CFC & HCFC
HFC
HC
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EMBRACO PRODUCT PORTFOLIO FOR PROPANE
R290 _ 50 Hz _ LBP
EMT1117U
NEK2121U
NT2160U
EMT1121U
NEK1121U
NT2170U
EMT1125U
NEK2125U
NT2180U
EMT1130U
NEK2134U
NT2210U
EMT2117U
NEK2150U
EMT2121U
NEK1150U
EMT2130U
NEK2160U
EMTE2134U
VNEK207U
VNEK213U
R290 _ 50 Hz _ MBP
EMT6144U
NEK6152U
NT6217U
EMT6152U
NEK6165U
NT6220U
EMT6165U
NEK6181U
NT6222U
EMTE6181U
NEK6210U
NT6224U
NEK6213U
NEK6214U
NEK6217U
NEK6124U
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REFRIGERATION SYSTEMCASE STUDIES
Vertical freezer with solid doorInternal volume: 500 lt
Vertical freezer with glass doorInternal volume: 400 lt
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MODEL Displ. Refrigerant RPMCapacity (W) at 55 °C EN12900
-30°C -25°C -20°C -15°C -10°C
NEK2150GK 12,12 cm³ R404A/R507A 2850 326 419 529 657 807
NT2178GK 17,4 cm3 R404A/R507A 2850 399 516 651 806 983
NT2170U 20,4 cm3 R290 2850 476 620 788 9815 1196
VNEK213U 13,54 cm³ R290
2000 262 318 403 508 628
3000 298 378 477 693 728
3000 365 468 591 735 898
3600 430 558 706 873 1059
COMPRESSORS PERFORMANCES
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VARIABLE CAPACITY COMPRESSOR CONTROL
OPTIONS
Thermostat VCC inverter
Temperature control
Compressor driver
Speed control
DROP IN MODE
Inverter decides the best compressor speed
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VARIABLE CAPACITY COMPRESSOR CONTROL
OPTIONS
Electronic Thermostat
VCC inverter
Temperature control
Compressor driver
FREQUENCY OR SERIAL MODE
Speed control
Thermostat decides the compressor speed
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HFC HC
Compressor NEK2150GK VNEK213U
Compressor type Recipro VCC Recipro
Refrigerant R507A R290
Refrigerant charge 420g 110g
Condensing temperature 42,6°C 36,9°C
Evaporating temperature -24,3°C -25,7°C
Voltage 230V/50Hz 230V/50Hz
Power (before turn off of the compressor) 606,2W 384,7W
Thermostat setting -18°C -18°C
Energy consumption per 24 hours 13,829 kWh 8,641 kWh
37,5%energy saving
CASE STUDY RESULTS
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HFC HCCompressor NT2178GK NT2170U
Compressor type Recipro ReciproRefrigerant R404A R290
Refrigerant charge 400g 136gVoltage 230V/50Hz 230V/50Hz
Thermostat setting -17°C -17°CEnergy consumption per 24 hours 14,400 kWh 8,219 kWh(*)
(*)Consumption with high efficiency fan motors and led lightning
42,9%energy saving
CASE STUDY RESULTS
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REFRIGERATION SYSTEM ENVIRONMENTAL IMPACT
TEWI Total Equivalent Warming Impact, is
considered as a good parameter to evaluate the
impact on the environment caused by a refrigerating
system.
Direct effect: L – Leakage rate (kg/year) n – Life time (years) m – Refrigerant charge (kg) – Recycling factor (%)Indirect effect:
E – Energy consumption (kWh/year) – Emission from energy generation (kgCO2/kWh)
TEWI = GWP*L*n + GWP*m*(1-) + n*E* [kg CO2]
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Refrigerant GWP L n m α E β TEWI
Glass Door– NT2178GK R404A 3280 0 10 0,400 0 5258 0,339 19122
Glass Door – NT2170U R290 3 0 10 0,138 0 3000 0,339 10170
Solid Door – NEK2150GK R507A 3300 0 10 0,420 0 5047 0,339 18497
Solid Door – VNEK213U R290 3 0 10 0,110 0 3154 0,339 10692
REFRIGERATION SYSTEM ENVIRONMENTAL
IMPACT
42 - 47%CO2 emission reduction
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Refrigerant
Energy consumptio
n (KWh/year)
Price range Euro/kWh
Costs of energy in one year
Euro
Annual saving Euro
Glass Door – NT2178GK R404A 5256 0,1 – 0,3 526 - 1577 Ref
Glass Door – NT2170U R290 3000 0,1 – 0,3 300 - 900 226 - 677
Solid Door – NEK2150U R507A 5047 0,1 – 0,3 505 – 1514 Ref
Solid Door – VNEK213U R290 3154 0,1 – 0,3 315 - 946 189 - 568
OPERATIONAL COST FOR END USER
Higher cost of variable capacity drive is quickly compensed by operating cost reduction
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CONCLUSIONS
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THANK YOU!
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ENERGY EFFICIENCY
IMPROVEMENT IN LIGHT
COMMERCIAL REFRIGERATION
SYSTEMS
CASE STUDIESMarek Zgliczynski